周六玩HIFI——当南瓜分体845后级遇上柏韵211分体后级 [复制链接]

EXCLUSIVE model2401twin  1983 release  
1,200,000yen(one-set, around the 1993 time)  


Description  
　
The professional studio monitor speaker system for large-sized control rooms which adopted the unit of TAD (Technical Audio Devices) and was developed.

Two TL-1601a of a 40cm cone type Woofer is carried in low-pass.
The high efficiency is realized by having raised thoroughly the magnetic circuit of an AlNiCo-Magnet using, the combination of lightweight vibration system, and the initial shock sensitivity of an oscillating supporting system.
Furthermore, in order to improve the endurance demanded as an object for pros, it corresponds by coupling of the smooth oscillating supporting system of a motion which pierced through DRS (dynamic response suspension) thought, and a special aging cone.
Moreover, the endurance excellent also in the using of the Dainyuu power long time has been conjointly acquired with the heat-dissipation design with the sufficient voice coil of high heat resistance and efficiency ratio.

Driver unit TD-4001 and horn TD-4001 are carried in the high region.
TD-4001 has realized the wide band play (600Hz - 20kHz) by adoption of the Alnico magnetic circuit of flux density 20,000Gauss, and 10cm in diameter a large-sized beryllium diaphragm.
Moreover, TH-4001 is the stabilized dispersion horn developed in order to demonstrate the capacity of TD-4001, and has succeeded in the directive modification by 10kHz or more made difficult in the conventional large-sized horn. Furthermore, the large listening area is secured by realizing the directive effective pattern obtained from actual sound field research. The acer mono is used for the material.

TN-1 which is a dividing network of TAD is adopted as a network. Since this TN-1 is designed for the twin drive, it is a 4-ohm specification.
OFC (oxygen free high conductivity copper) was adopted as the product-line code or the choke coil coil, and thorough low-loss-izing and reduction in a leakage, such as connection of a press join type, a gilding large-sized terminal, adoption of a quality capacitor, etc. which use an OFC sleeve, are realized.
Moreover, making HF circuitry and line feed character circuitry separate etc., in order to form line feed character circuitry into a balance circuit in order to remove the inter leakage resulting from an earth line, and also to sweep away muddiness of the sound in a crossover is the custom-made design which demonstrates the performance of each unit.

High-rigidity-ization is attained by adopting apitong plywood as an enclosure. Reinforcement of frame structure effective for this was added, and sufficient intensity is secured.



  

  



Rating of a mode  
Scheme  2 ways, 3 speaker bass-reflex scheme, and a floor type  
Using unit etc.  For low-pass: 40cm cone type (TL-1601a) x2
For high regions: Horn type (TD-4001+TH-4001)
Network: TN-1  
Play frequency band  29Hz - 20kHz  
Rated input  300W  
The maximum input  600W  
Impedance  4ohm (at the time of a built-in network)  
Output sound pressure level  98dB  
Maximum output sound pressure level  126dB/m  
Cross over frequency  650Hz  
Dimensions  Width 1100x height 900x depth of 712mm
Enclosure depth: 575mm  
Weight  145kg

原帖由 shotchen 于 2013-10-20 21:16:00 发表 EQ是这台 来个正面，很多调控的东西，希望专业人士能介绍一下。

Avalon AD2055型纯甲类音乐均衡是当今市场上出现的功能最强大的、低噪音参量均衡器。AD2055设计用来优化绝对的信号完整性以及音乐表现，它以简洁的设计将最佳的主动、被动滤波器电路与无与伦比的声学品质结合起来。对于双低音音乐节目的均衡、特殊乐器的EQ及FX应用，以及高性能的母带处理，AD2055是最佳解决方案。

其特征为艺术级、平衡的100%分立元件、纯甲类信号放大器，实用的用户特征以及橡胶涂层的硬件设计，长久地传递高性能的音效。

被动- 主动滤波器设计
主动滤波器EQ与被动滤波器EQ设计的独特结合，是Avalon 均衡器的特色这种特殊的结合使得AD2055 可传递高速、瞬时的细节，真实世界均衡需求极限所要求的细节。被动高频带及低频带为全功能被动参量中频带提供了另类音调范围。长久以来，被均衡器一直昃世界上音乐爱好者的偏爱，音色圆润、悦耳、功能强大（可达+/-32分贝，64分贝范围），而且方便的频率选择是被动高- 低频带EQ的长处。全频段双中频提供了可变频率选择（X10倍频器带来宽范围）、可变Q（宽度）以及范围控制。

最短信号通路设计
Avalon 的先进的纯对称设计提供了高电压、大净空、扩展的频率带宽以及极低的噪音。100%分立元件、纯甲类信号放大器的使用为要求苛刻的音乐专业人士提供了无限的声学特性以及自然和谐谐的细节，提升了借乐材料，与音乐自身浑然一体。

*平滑的音乐细节及靓丽的声学品质
*最短的音频信号通路
*纯甲类，100%分立元件设计
*双单声道运行方式
*通透的被动与主动滤波器设计
*极低的噪音，-94分贝
*高净空+30分贝
*平衡输入及平衡输出
*直流耦合， 音频通路无变压器
*在高频带及低频带转换的频率
*中频带使用x10频率以获得扩展的范围
*宽频带-3分贝1Hz至450kHz
*低失真，THD及IMD低于0.5%
*导电塑料电位器，获得低噪音
*所有信号通路使用银质继电器
*100%分立元件的电源用于音频通路
*外接150瓦环形电源
*长寿命的不锈钢硬件



电路结构 高电压、100%分立元件、平衡、对称的纯甲类
--------------------------------------------------------------------------------
输出增益范围 单位增益
--------------------------------------------------------------------------------
最大输入电平 +30分贝，平衡XLR卡侬输出，针2为“热”
--------------------------------------------------------------------------------
最大输出电平 +32分贝，平衡600欧姆，直流耦合，大电流分立元件甲元件甲类
--------------------------------------------------------------------------------
输入输出类型 XLR型，针2为“热”，平衡
--------------------------------------------------------------------------------
噪音(20kHz,未加权) -94分贝（均衡器工作时）
--------------------------------------------------------------------------------
总谐波失真/互调失真 0.5%(通常,+6 分贝1kHz时0.05%)
--------------------------------------------------------------------------------
频率响应,一3分贝 1Hz到450kHz(输入频段受限)
--------------------------------------------------------------------------------
均衡器类型 被动高频带及低频带,再加上两个全参量中频带
--------------------------------------------------------------------------------
旁路 使用硬继电器将均衡器输入输出旁路
--------------------------------------------------------------------------------
低频带F1 被动,范围在-32分贝至+32分贝间,架型或峰谷曲线
--------------------------------------------------------------------------------
F1频率范围 10点可切换:18Hz,25,30,50,72,100,150,215,300,450Hz
--------------------------------------------------------------------------------
中频带F2 主动,范围在-16分贝至+16分贝间,峰谷曲线
--------------------------------------------------------------------------------
F2频率范围 35Hz至450Hz(x10)350Hz至4k5Hz间可调,Q(带宽)0.3至3.0
--------------------------------------------------------------------------------
中频带F3 主动,范围在-16分贝至+16分贝间,峰谷曲线
--------------------------------------------------------------------------------
F3频率范围 160Hz至2kHz(x10)1600kHz至20kHz间可调,Q(带宽)0.3至3.0
--------------------------------------------------------------------------------
高频带F4 被动,范围在-26分贝至+26分贝间, 格架型或峰谷曲线
--------------------------------------------------------------------------------
F4频率范围 10点可切换:1k5Hz,2k5,3k5,5k,7k2,10k,12k5,15k,20k,25kHz
--------------------------------------------------------------------------------
交流-直流电源
包括B2T电源) 外接交流电源,150瓦环形变压器,4针电缆90V绝缘,工作范围100-240V,50/60Hz,最大功率150瓦
--------------------------------------------------------------------------------
外形尺寸 19 x 3.5 x 12英寸(482 x 88 x 305毫米)
--------------------------------------------------------------------------------
毛重 30磅(13.6公斤)

原帖由 shotchen 于 2013-10-20 16:02:00 发表 原文再叙书接上一回。还好，现场有位高人在场，带了套“架撑”（即普通话的“器材”），一台EQ机和一个带话筒拾音及电子示波功能的类似于遥控器的东西。通过10来分钟对现场的取声，左右声道各播放一段粉红噪声，然后根据示波反映的现场声学环境情况，调整EQ均衡器给予补偿。经过这样调整设置，半小时后系统重新开声，哗整个系统出来的声音有脱胎换骨的感觉，变化非常明显。

陈兄可否详细说说EQ是如何和系统连接的，“一个带话筒拾音及电子示波功能的类似于遥控器的东西”是在EQ之内还是需要另外购买，除了EQ，还有其他器材用于调整设置吗？
另外可否具体对比一下经过EQ处理前后的具体声音表现，尤其是EQ调整后系统声音的自然度，活生感如何？

原帖由 柏韵音响 于 2013-10-20 20:24:00 发表 [quote] 原帖由 wm711130 于 2013-10-20 17:12:00 发表 这对箱子应该是复刻版的TAD EXCLUSIVE 2401。如果罗总使用的是全套的TAD单元，就应该每边一个TD4001驱动头和两个TL1601A低音单元，看号角和箱体应该是复刻的。关键的一点是箱子的分频器是否原装的TN-1? 罗总的听音室长宽分别是多少？复刻2401之间的距离是多少（箱体

如果是这样，估计这款复刻版的TAD2401和原厂箱的声音差距不会很大。
除了使用TN-1分频器，罗总有没有尝试过两路电分，用两台后级直驱两路单元，比如PA300BSE推高，PA211SE/211PSE推低？
在下曾经是柏韵PA-300BSE的用家，在国产单端300B合并机中，其整体素质是出类拔萃的。